The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 03, 2004
Filed:
Jan. 03, 2003
Applicant:
Inventors:
Min Zuo, Kitaibaraki, JP;
Jenq-Tain Lin, Kitaibaraki, JP;
Assignee:
Nippon Mektron, Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 7/310 ; B32B 2/700 ; B29D 4/00 ;
U.S. Cl.
CPC ...
C08G 7/310 ; B32B 2/700 ; B29D 4/00 ;
Abstract
A film-formable polyimide copolymer, which comprises two kinds of tetracarboxylic acid dianhydride consisting of (A) pyromellitic acid dianhydride and (B) 3,3′,4,4′-benzophenonetetracarboxylic acid dianhydride, and (C) 6-amino-2-(p-aminophenyl)benzimidazole has a heat-resistant dimensional stability without any deterioration of mechanical properties inherent in the polyimide resin when used as a film.